From Black Gold to Critical Gold

North Dakota is renowned for its vast energy resources, from the oil-rich Bakken shale to its abundant lignite coal. But what if the greatest untapped value lies not in the primary resource, but in what’s left behind? Industrial byproducts like oilfield brine and coal ash, often viewed as waste, are emerging as a significant domestic source of the critical minerals and rare earth elements (REEs) that power our modern world.
At Xylion Technologies, we see this as North Dakota’s next great resource boom—a chance to turn legacy liabilities into strategic assets, fueling a secure American supply chain for generations to come.
The Treasure Within the Waste
The industrial byproducts of North Dakota’s energy sector are surprisingly rich in valuable materials. Researchers and state agencies have identified significant concentrations of critical minerals that are essential for everything from smartphones and defense systems to green energy technologies.
Oilfield Brine: The saltwater co-produced with oil and gas is not just salty water. Studies of the Williston Basin show that this brine contains valuable minerals. Xylion’s own focus is on Rubidium, a high-value mineral critical for GPS technology and fiber optics for which the U.S. is currently 100% import-reliant. The Bakken formation also contains other minerals like Lithium, manganese, and cobalt.
Lignite Coal and Ash: North Dakota’s lignite coal and its combustion byproduct, ash, have been identified as a promising alternative resource for rare earth elements. In some cases, the total REE content is above the 300 parts-per-million threshold considered viable for economic extraction. Studies show that North Dakota lignite can be particularly rich in valuable heavy rare earths and Scandium.
The Key to Unlocking Value: Ion Exchange
The challenge has always been to separate these valuable, low-concentration elements from their complex host materials efficiently and economically. This is where modern ion exchange technology becomes a game-changer.
Ion exchange is a sophisticated chemical process that acts like a magnetic filter on a molecular level. It uses specialized media—like Xylion’s proprietary Xy-lect Rb 100—to selectively target and capture specific elements from a liquid, such as rubidium from brine, while allowing other elements to pass through. This allows for the concentration of valuable minerals into a pure, marketable form.
With deep expertise in this field, demonstrated by years of research and successful development of lithium extraction media, Xylion is perfectly positioned to apply this powerful technology to North Dakota’s unique resource opportunities.
A New Economic and Strategic Horizon for North Dakota
Harnessing these resources offers a transformative opportunity. By deploying advanced extraction technologies, North Dakota can:
Strengthen National Security: Provide the U.S. with a stable, domestic source of critical minerals and REEs, reducing dependence on foreign nations.
Create New Revenue Streams: Convert costly waste streams into valuable products, diversifying the state’s economy.
Drive Innovation: Foster a new high-tech industry around mineral processing, creating jobs and leveraging the state’s world-class research institutions.
Xylion Technologies is committed to leading this charge. Our ongoing research and development, including next-generation concepts like our Xy-ELIP electrochemical system, are designed to make extraction more efficient, sustainable, and profitable. We are not just developing a process; we are building a platform to help North Dakota realize the full potential of its resources for a more secure and prosperous future. Reach out to info@xyliontechnologies.com.
